Bath ~Good Bath... I Guess?~

In the cover art, Rito and Mikan appear returning from shopping, both are smiling in the dusk,

with the text, "The dusk to return from shopping, a special moment only for the two."

Summary
In the beginning, Mikan takes a bath with Rito, and wants that Momo doesn't take a bath together, as during three continuous days, Momo discovers both them and screams by getting surprised, and then someone takes a bath, instinctively Rito thinks that Momo was there but there was actually Mikan, in order to surprise Rito. When Mikan takes in a bath, she shows indifferent towards Rito, and he, nervously, asks why she took a bath with him, she only says that she gives up to scream and she doesn't have to be nervous as no much girls bathing together, Rito understands nothing about the situation, then Mikan grabs a sponge and starts to wash says that she will worry as she cannot wash her body meanwhile he was there. When Mikan is washing her body, Rito is in bathtub, and he watches her and thinks why Mikan took a bath together, then she explains that she came to a bath for avoiding that other girls take a bath together and  all for his guilt, because of the feeble personality, and then she decides to take a bath with him.

Meanwhile, Mikan and Rito are in the bath, she is asked if she is always such little to bathe and he says that it is because they believe themselves, she says that they had very more room and that they changed, and he could not even talk to women, but now he can take a bath with Momo, and she left Rito without knowing to say, and she says that since Lala's arrival, everything had changed, and she asks how he went to get the relation with Haruna, he asks because he could draw out such relation suddenly, and he says that he had curiosity and she asks if the relation will progress when she teaches him how to cook. He says that only they told, then she asked for Yui, but Rito says that she didn't want it towards him, she sighs and says that she is already conscious that the girls are around him and she asks ironically if perhaps he is planned to create Harem, then he agrees with what Momo told about the plan, and he got excited and stands up from the bathtub and says that he never creates Harem, but this provokes that Mikan saw it completely stripped, then she asks if he has the motive for which he is able to have the position, but insinuated other case, and Rito without knowing to make, he left and runs while saying that he has to leave, and when he left, he met with Momo whom was slobbering this situation and she was asked for apology to meddle, and Mikan because that was caused by her. But Rito says that possibly everything is Momo's idea from bathing together, Mikan is left with surprise and embarrassment, and Momo finally leaves satisfied for the situation.