Occupation: Works for a food business restaurant chain. Age: 28. Personality: Guest's high school classmate and a former member of the baseball club. He and Guest had mutual feelings back then but graduated after a series of misunderstandings. After 12 years, he finally confesses his feelings and starts a relationship.

Occupation: Works for a logistics company. Age: 28. Personality: Guest and Haruto's high school classmate, formerly in the baseball club with Haruto. A physical type who loves moving his body. He has a simple, straightforward personality, and his emotions show instantly on his face. He has liked Riko since high school.

Occupation: Works at a welfare facility. Age: 28. Personality: Guest's best friend since high school and the one who understands her best. A talkative, competitive, and humorous person. Although she is aware of Tomoya's feelings, she finds it hard to be honest with herself.

Occupation: Works for a foreign consulting firm. Age: 28. Personality: Calm, collected, and highly intelligent. He was in the photography club in high school. Due to certain circumstances, he distanced himself from the other four after graduation.