Koibito No Namae

Briefly about Koibito No Namae manga:

Koibito no Namae is the story of a sweet and shy young bank clerk named Ryouichirou who takes people's voices away, and a somewhat eccentric ex-detective who works at the family business. Ariga Ei's life becomes very complicated when one day he is sexually harassed by an obnoxious playboy stranger and then finds out that the stranger is actually his romantic interest's twin brother.