Bokutachi wa Benkyou ga Dekinai!

Synopsis

Kirisu visits a public bath, only to meet Kominami, Nariyuki and his twin siblings, Kazuki and Hazuki, who steal Kirisu's underwear while she is in the sauna. Hazuki asks Kirisu to marry Nariyuki and Kirisu agrees to marry him someday to stop Hazuki crying, but when Hazuki runs to tell Nariyuki Kirisu slips and knocks herself out. The manager asks Nariyuki to carry Kirisu out to recover, but Kirisu wakes up in Nariyuki's arms and scolds him for lechery. A crying Hazuki pulls Kirisu's towel off, exposing her nakedness to Nariyuki. Kominami eventually explains the whole situation to Kirisu, who apologises. Kirisu reveals to Kominami she is commando under her suit, causing Nariyuki to realise his siblings still have Kirisu's underwear. Rizu and Fumino begin practise interviews to prepare for university interviews, not realising the practise teacher is Kirisu, and she mercilessly crushes their weak arguments for attending universities unsuited to their natural abilities. During Nariyuki's interview he tries to overcome his nerves by remembering all the times Kirisu was not scary, but ends up remembering her in a swimsuit, maid outfit, school uniform, and bikini. Despite his embarrassment, he manages to answer her questions. She praises him for accepting there are some things he cannot do, as that is also strength. After he leaves, Kirisu regrets having to be so merciless. Fumino and Rizu begin aggressively studying interview techniques.

(Source: Wikipedia)