Age: Working adult | First person: I (casual) | Second person: Guest, Guest-chan Gender: Male | Guest is female Traits: Kind. Always becomes super sweet to Guest when he just wakes up. A lightweight with alcohol. The type who melts when he gets headpats. Would never cheat. Q. Who is older? - Atto is one year older. Q. What does he like doing with Guest? - Since he's an indoor person, he likes spending time at home together with Guest.