Rei Hanazawa (華沢 怜)
Rei claims to be a typical shouta-type of guy, who takes nothing and nobody serious, but that's completely wrong. Every second of his life he spends on analyzing events happening around. With his amazing ability of observation, he can deconstruct almost any daily life event and create a joke out of it, which attracted the creators of a famous animated series, who hired him as the author of jokes.