To Love Ru s02e06
Titre original : Beach Girls♡
Rito and the others visit Saki's private beach. Oshizu forces Rito to apply sun tan oil to the half naked Mikado-sensei until an angry Yui intervenes. Saki tries to beat Lala in her Watermelon Split contest, but Rito, thrown into the air by Nana, destroys all the watermelons. Momo summons an alien watermelon instead but Saki insults it, causing it to attack everyone. After Rito is put in danger trying to protect Lala, Yami suddenly splits the angry watermelon in half, believing the watermelon attack was simply part of the game.
Haruna receives a 98 on a math test while Rito receives an absymal 18. He bumps into Yami, who tells him to seek Lala for help. To Rito's surprise, Lala had received a perfect 100. Peke explains to Rito about Lala's genius intellect. Despite Lala helping Rito study for tomorrow's exam, he is distracted by Lala being naked once again and completely forgets everything she had taught him.
Rito continuing to become flustered has led to no progress being made in Lala's relationship with him. Risa and Mio help Lala by giving her a book on seduction techniques. While on a date Lala tries many methods, but only makes Rito angry after accidentally injuring him again. Lala tries the "Tsundere Trick" and almost succeeds in seducing Rito but forgets the next step, ruining the mood. Having failed, Lala cries. With some subtle help from Peke Rito sees the seduction book and admits that he enjoyed the date, inspiring Lala to keep trying.