So five year old daughter meaning he was likely 12 when she was concieved. Also the bloke is too calm as a single father of a five year old at 18, most would be freaking out about it, not be saddened his daughter isn't all lovey dovey with him.
@harryno5 The story is starting in the middle of things. It's not clear how long he has known about her and how long they've lived together, but he clearly is used to the idea that he has this daughter.
@Thoraxe41 I like translating stories with a wack ass setting LMAO. They're usually 'fun' to read, with a few touching moments here and there nicely dribbled in. The other series I translate is 'My Girlfriend is a Dragon', so if you read it, you'd see why I'd like something like this ¯\_(ツ)_/¯