Ueno investigates mysterious rumors as a ploy to bond with Tanaka. Later, a revolutionary water filtration system involves super absorbent gym clothes.
He really is a blockhead 
about this kind of thing.
.إنّه مغفّل حقًّا عندما يتعلّق الأمر بهكذا أمور
Er ist bei so was schwer von Begriff.
il réagit jamais
à ce genre de trucs…
Lui è davvero un testone su questo genere di cose.
Ele realmente não reage
a esse tipo de coisa.
У него мозг не работает
в этом направлении.