With an unbreakable will Watashi continuously strives to raise Kaatan his kappa as well as he possibly can. Though always faced with difficulties hes never disheartened. Dont worry about his face In fact its nothing unusual in this anime all of the human characters have a stark lack of facial features. Watashi is studious and spends a great time studying the How to Raise a Kappa series of books. From them he gleans kappa knowhow and applies it to his everyday activities with Kaatan. We learn later that Watashi grew up with a kappa in the countryside which may explain his undying love for kappa in general