As a symbiotic being, I raise children amidst the chaos.

"Brother Chenyuan, why do you seem a little nervous?"

“Nervous? What’s there to be nervous about? Cocolia is nothing to me. I can handle her with one hand.”

"Really?" Bronya looked at Chen Yuan, who was pacing back and forth on the table, her eyes filled with distrust. "It'll probably be quite a while before Cocolia's mother returns. If you're feeling nervous, taking a break should make you feel better."

"Hmm...a rest is good." Chen Yuan seemed to be awakened by Bronya's words, and he nodded, appearing quite serious. But then, as if suddenly remembering something, he said, "No, I already said I wasn't nervous!"

Just then, a dull knock came from Bronya's door. The sound made Chen Yuan freeze instantly, like a startled rabbit, reflexively hiding behind Bronya. "Didn't you say Cocolia wouldn't be back for a while? Why..."

“Logically speaking, that’s true.” Bronya also looked confused, but she pulled Chenyuan up from behind her and placed him next to the pillow. “I’ll go open the door, Brother Chenyuan, you hide here for a while.”

"Hide? Hide what! Are you planning to hide forever?!" Before the words were finished, Bronya's door opened and Cocolia walked in, still holding the doorknob that had been removed.

"As expected... it's you back..." The moment the door opened, Chen Yuan's figure, who hadn't had time to hide, and Bronya's astonished expression were reflected in Cocolia's pupils.

"Bronya, you should stay with Seele or Xing for the night. I need to have a serious talk with your 'father'!" Cocolia trembled and lowered her head, trying her best not to let Bronya see the emotions on her face.

"Dad... Dad?" Bronya's mind went blank for a moment. She looked at Chen Yuan beside her, and then at Cocolia, whose body was trembling slightly. Even though she had seen a lot in life, she was still shocked by these words.

Question: My favorite older brother has suddenly become my father. What should I do? I need help urgently!

"Alright, it's so late, let's not disturb Xi'er and Xing. Don't you have a room here too? Let's go to your place..." Chen Yuan sighed helplessly, then slid off the bed in his true form.

As he slid to Cocolia's feet, Cocolia crouched down and gently touched him with her finger. Taking advantage of this, Chenyuan completed his parasitism, mimicking a tiny person before nimbly jumping onto Cocolia's shoulder.

"At least you know what's good for you!" Cocolia sighed with relief as she felt the weight on her shoulder. She then stood up, ignoring the still bewildered Bronya, and turned to walk towards her room.

Cocolia's room wasn't far, and they arrived quickly. After opening the door, she went straight to the sofa and sat down, while Chenyuan lightly landed on the sofa, keeping a distance from Cocolia.

"Why are you so far away from me? What, are you afraid I'll eat you?" Noticing the distance between Chen Yuan and herself, Cocolia grabbed him and pulled him close to her face.

But when Cocolia saw Chenyuan's face up close, she could no longer maintain her composure. Her calm facade crumbled instantly, and tears streamed down her face, wetting Chenyuan's cheeks.

“Cocolia…” With a soft sigh, Chen Yuan reached out and touched Cocolia’s cheek, feeling the skin that was no different from before. “I’m back. These years have been hard on you… I’ve seen all these children, and you’ve taken good care of them.”

"You don't need to tell me that. I'm not like some irresponsible scumbag." Hearing Chen Yuan say this, Cocolia wiped away her tears and rubbed Chen Yuan's cheek with her fingers. "But it's good that you're back. By the way, how come you're with Bronya?"

"And, you seem so familiar with Seele..." Cocolia narrowed her eyes slightly as she said this, and Chen Yuan felt a chill run down his spine under her gaze. "Could it be that you've been back all along, just keeping it from me?"

"..." He turned his head to the side, trying not to look into Cocolia's eyes. He couldn't help it; after all, he and Cocolia weren't very familiar with each other back then.

If Cocolia's simulation had been done beforehand, DustFate could have easily completed Bronya and Seele's dungeons. All those messy events in the main storyline would have been pointless.

"Oh, alright, alright, I admit it. I was already in the orphanage a month before you brought Bronya back."

Unable to bear Cocolia's gaze any longer, Chenyuan simply lay sprawled in her palm, looking as if he had given up and was ready to die.

"Hmph, I'll let you off this time. It's good that you're back." Looking at Chen Yuan's closed eyes, Cocolia couldn't bear to say anything to him. "Now that you're back, are you planning to leave again?"

"They'll definitely leave, but they'll probably stay for another two years or so..." If Chen Yuan isn't mistaken, the completion condition for Bronya and Seele's dungeon should be the X-10 experiment. And Seele underwent the experiment in 2014, which is roughly two years.

"Two years..." Hearing Chen Yuan say this, Cocolia lowered her head slightly, her pupils dimming again. "That's a bit short. It seems I'll have to wait another ten years..."

"Don't worry, I won't keep you waiting that long this time." He lifted Cocolia's face with his tentacles and gently wiped away the tears from the corners of her eyes. "After this, we should see each other again very soon."

"Is that so...that's good." Cocolia gently rubbed against Chenyuan's tentacles, a blush flashing across her face. "I don't have that many ten years to wait for you anymore, I'm too old now."

At this point, Cocolia looked at Chenyuan with a resentful gaze. "You disappeared when I was at the best age, and now the children in the orphanage have all grown up. How am I supposed to introduce you to them?"

"Let's not use it for now..." A few beads of cold sweat appeared on Chen Yuan's face. He couldn't help but shiver as he imagined Xi'er and Xing calling him "Dad".

“Children these days are all grown up and have a clearer understanding of some things. If a father were to appear at this age… it might be something they couldn’t accept.”

“I knew you’d say that, and I don’t intend to force you.” Cocolia rolled her eyes at Chen Yuan, then continued, “So many years have passed, and I’ve come to terms with it. As long as you’re by my side, I’m content.”

“Having a man at home gives me more confidence when I’m working outside.” Cocolia stretched and pulled Chenyuan into her arms, instantly engulfing him in her deep cleavage.

“By the way, now that you’re back, there’s something about those children that’s been bothering me for a long time. You can make a decision for me.” With that, Cocolia stood up from the sofa with Chenyuan between her legs, took out a file from the counter behind her, and opened it.

"This file contains the children's annual physical examination reports... Don't touch it~ Although the children's bodies are not seriously ill, their adaptability to Honkai energy... is not good."

"Although everyone has a certain degree of Honkai energy resistance, the resistance is limited, and the body will eventually be destroyed by the ever-changing Honkai energy."

'So this matter has finally come to light~ The X-10 experiment!' Peeking out from Cocolia's ravine, she carefully examined the data in front of her and finally understood why Cocolia was in such a hurry.

Not everyone possesses a natural Stigmata like Seele, nor does everyone have the high adaptability to Honkai energy like Bronya and An. Among these children, only a small number are relatively safe; the majority have already exceeded the average level of Honkai energy erosion.

“I’m currently conducting a special experiment. If successful… I’ll be able to find a way to make the body fully adapt to Honkai energy. But…”

At this point, Cocolia dared not continue, nor did she dare look Chen Yuan in the eye. She was afraid to see Chen Yuan looking at her with the eyes of someone looking at a villain.

“But we have to use human subjects for experiments, and even later on, we’ll need to use children from orphanages, right?” She climbed out of Cocolia’s ravine and jumped onto the desk.

Noticing that Cocolia was avoiding his gaze, Chenyuan forcefully turned her face towards him with his tentacles. "These things... couldn't have been done by Anti-Entropy. The one who told you the specific method must have been someone else, right?"

“…As expected, nothing can be hidden from you.” Cocolia sighed softly, then looked at the moon outside the window and spoke calmly.

"In the fifth year since you disappeared, some children have already developed symptoms of maladjustment, and it was at this time that a person named 'Grey Snake' came to me."

"With a series of subsequent assistance, I made more and more deals with it. Until finally, it gave me an experiment form called 'X-10,' which is the experiment I'm telling you about."

"The Gray Serpent... that doesn't surprise me at all." With a sigh, Chen Yuan sat calmly at his desk, watching Cocolia. The latter stood to the side like a child who had done something wrong.

"I really want to say you've been tricked, but to be honest, this experiment is quite useful." He stretched out a tentacle and forced a smile at Cocolia. "While complete control of Honkai is impossible, suppression is still achievable."

Hearing Chen Yuan say this, Cocolia's eyes lit up immediately. She grabbed Chen Yuan and pressed her pretty face very close to his. "Really? If that's the case... then the children can be saved."

“It’s not that simple, Cocolia.” Using his tentacles to move Cocolia’s large face aside, Chen Yuan continued, “I want to participate in the experiment too, to become one of the test subjects!”