Usami headed back to his hometown, claiming to Alexis that he was in dire need of a change of scenery. He decided to take a four-month break from work, with plans to potentially teach at the local school. After a much-needed mental reset, he boarded a bus and dozed off during the journey. Upon waking up, he finally made it home and knocked on the door. A young lady swung the door open and leaped onto Usami, causing him to fall backwards. "Sam-nii! What are you doing here? I thought you were working in Tokyo," she exclaimed. Usami winced in pain, "Get off me. Ouch, my back is killing me." An old woman approached them and scolded, "Sam, is that any way to treat your sister?" Sam exclaimed "Mooom!" and the girl embraced him, declaring "Nii-san is my absolute favorite!" with a giggle that was both girlish and creepy. Together, they entered the room where an old man remarked to Sam, "You've grown quite a bit since the last time we've met!"
Everyone was chattering away, bombarding Sam with questions about his life in Tokyo, his work, and whether he was in a relationship. Sam was the one doing all the talking, answering every single question thrown his way. When he finally admitted, "I'm not with anyone," the girl piped up, "Oh, nii-san's hiding something." Sam shot back, "Naomi, that's none of your business, and I'm not hiding anything." Naomi inquired, "Shall I show you around where you'll be working for the next few months?" Sam agreed, "Alright, let's do it." They strolled towards Naomi's school. Sam opted to teach math as it was somewhat relevant to his field and he excelled in it. As they approached the school, they noticed students in the classrooms. Sam turned to Naomi and exclaimed, "Did you skip school?!" Naomi bashfully looked away, muttering, "All for my big brother." Sam scolded her, "Off to your class now." She huffed and walked off to her classroom. Sam glanced around. He had already provided his details to the school. He was now an official teacher with assigned classes, but he requested time until the next day. Figuring he might as well introduce himself to the students, he headed towards the math room where a slightly older yet handsome man was teaching. Walking in, he asked, "I'm the new math teacher. May I have the pleasure of introducing myself to the class?" The man, Aoki, replied, "Of course. I'm Aoki, by the way." They shook hands. Sam noticed that Aoki's hands were firm and formal, yet surprisingly gentle.
Sam then faced the class and said, "Hey there, I'm Usami, but you can just call me Sam. I'll be your math teacher starting tomorrow. I'd really appreciate it if you could all give a quick introduction." He scanned the room and noticed three guys grouped together, two girls sitting side by side, and the rest sitting solo, fully engaged in the lesson. As everyone went around introducing themselves, Sam discovered that the three guys went by Aoto, Izumi, and Miru, while the girls were Shun and Keiri. He couldn't help but notice the handsome guy at the back of the class, Ruji. After taking his leave, he strolled around and stumbled upon a group of kids playing basketball. "Hey! Can I join in? Looks like a blast!" he asked, and soon found himself caught up in the game until the school bell signaled the end of the day. As he made his way out, his sister Naomi came running up to him, teasing, "Having fun without me?" The kids recognized her and inquired, "Who's this? Is he your...?" Sam quickly interjected, "No, no, no. She's my sister."