Inui, Arihiko

乾有彦

Inui Arihiko is a supporting character in Tsukihime and Kagetsu Tohya. He is Toono Shiki's classmate and closest friend. During the time Shiki lived with the Arima family, he frequently spent time with Arihiko. Arihiko maintains a competitive stance toward Shiki, specifically aiming to secure a girlfriend before Shiki does. As the narrative progresses, the player learns that Shiki occasionally struggles to understand how their friendship began, as he perceives Arihiko as having a "weird personality." However, at one point in the game, when Shiki collapses in class due to his condition, Arihiko is the one who loudly alerts the teacher that Shiki is ill and requires excusal. Arihiko then assists the physically weakened Shiki to the medical office, displaying a personality trait that may, depending on the player's subjective interpretation, help explain why Shiki remains friends with Arihiko despite the latter's occasionally callous behavior.