Bokutachi wa Benkyou ga Dekinai!

Synopsis

Due to her father barging into the bathroom Rizu accidentally cuts off her fringe which she decides to hide from Nariyuki under an unusual mask, which Nariyuki believes is some bizarre revenge for seeing her in the bath. Fumino pulls the mask off, though Nariyuki doesn't notice anything different, making the girls mad at him. Rizu becomes confused at why Nariyuki not noticing upset her. Nariyuki asks for another chance using her first name, so when he guesses the difference is her unusually happy facial expressions she tells him he is right. Rizu agrees to go shopping with Sawako for a pencil case, though Sawako sneakily takes her to popular date spots, until she spots Nariyuki and reluctantly tells Rizu to shop with Nariyuki, deciding Rizu would be happier with him. Sawako reminisces about middle school, where her classmates were jealous of her perfect test scores, until she met Rizu, who didn't care what her classmates thought. Sawako decided to go to the same high school as Rizu but failed to talk to her until their third year. Nariyuki confronts Sawako as he knows she was looking forward to spending the day with Rizu, and she ends up admitting how much she admires Rizu, and Rizu hears her. Rizu admits hearing Sawako's praise makes her happy, then asks her to continue helping her shop for a pencil case. Sawako is so happy she trips into Rizu's breasts, exposing her own panties to Nariyuki.

(Source: Wikipedia)