He's a fair-skinned boy with presumably light blonde hair. He's only been shown in his school uniform throughout the manga.
He acts like a cheerful, affectionate, and very trustworthy boy and he pretended to care a lot about his ex-girlfriend, Tsurara Takahashi, but, when pornographic photos of Tsurara were exposed, he accused Tsurara of being a cheating slut. Tsurara tried to convince him otherwise, but he harshly kicked her, causing her to get a nosebleed.
- His name Akai translates to "Red".