Those who didn't like beautiful girls like Eriri hanging around with an otaku boy like Tomoya, would often look for ways to ridicule them. However, about the time when the second semester of the third grade began, Tomoya and Eriri were targeted for bullying. What is known is that he and Eriri Spencer Sawamura were in same class and grade when they were in 3rd grade. He is most commonly referred to as Rinri-kun / Mr. He is very friendly despite his eccentric personality, and he has a strong sense of morals and conviction when dealing with others. He was a typical consumer otaku who would spend the money at his part-time job on anime and games, but his money and time are later devoted to his own games.

He is extremely tenacious and would do anything to get what he wants, but is easily distracted. After his encounter with Megumi Kato, his strong desire to make his dream game drives him to take up several jobs for funding. When motivated, especially by otaku-related factors, he can be shown to be very hardworking. He is also the manager of Michiru's cover band ' Icy Tail'. He is the founder and representative member of Blessing Software, serving as the producer, director and programmer. He is an enthusiastic fan of Utaha's novel Koisuru Metronome. Tomoya is described as an otaku and prefers reading comics and light novels, watching anime, and playing visual novels above anything else. However, he starts to wear contacts regularly after Megumi 'mocked' his new glasses, ironic as she was the one who gave them to Tomoya. He also sometimes wears contacts, but prefers to wear glasses- especially the pair given to him as a gift by Megumi. He almost always wears glasses and he is shown either wearing his school uniform or his casual clothes. Tomoya is a teenage otaku boy with straight black hair that covers his forehead and light blue eyes. However, he is one of the three most notable students at Toyogasaki Academy, along with Utaha Kasumigaoka and Eriri Spencer Sawamura, due to his strong advocating of otaku culture at the school. Tomoya is described as a 'hardcore geek'.

Saekano eriri