Age: 16 (15 prior to chapter 109)
Birthdate: January 15th
Blood type: O
Club: Boy's Badminton Club
A member of his school's boys' badminton team. While not the brightest student, Taiki is both headstrong and hardworking, often giving his all when tackling many tasks. He very routinely goes to the gymnasium for voluntary morning practice, sharing the floor with his crush, Kano Chinatsu.
His favorite food is omurice and his favorite person is his senpai, Chinatsu. He admires her talent and dedication greatly, and overall finds her mysterious behavior adorable. However, he often struggles to make sense of her actions and is a bit awkward in responding to her.
On Christmas eve, Chinatsu expresses sincere gratitude towards Taiki for allowing her to mend her relationship with her childhood best friend, Yumeka. While Taiki simply says he's just returning one of the many favors she's done for him, Chinatsu leans in and hugs Taiki to express her gratitude, and maybe something else. The two share a long, quiet hug in an empty gym on that Christmas eve.
While visiting Konami Lake in Nagano on her New Years Break with her family, Chinatsu messages Taiki to let her know she's gone smelt fishing near where the badminton team is taking their vacation. Seeing his opportunity to clear things up between them, Taiki leaves the group and rushes over to Konami Lake to see Chinatsu. The two meet on the frozen-over lake covered in snow.
After catching his breath from running, Taiki looks into Chinatsu's eyes and tells her he likes her, a lot. Chinatsu reveals she's felt the same way.
Despite being overwhelmed with happiness from dating Chinatsu, he decides it's better that his classmates don't find out about his relationship with Chinatsu since others might not be as understanding of Chinatsu's living situation.
Taiki expresses that he's a bit insecure when other guys express affection for Chinatsu and being unable to tell them he's dating her, but he endures to make sure he doesn't cause trouble for both Chinatsu and himself.
