Rena accidentally swallows the "Fuwazaru Magatama" at the picnic, when it fell from the sky and begins acting lovesick. Rika explains that the seal on the magatama was broken, and whoever possesses the red one will fall blindly in love with anyone holding the white counterpart. Everyone reasons that Rena must have swallowed the red magatama and sets out to stop her and find the white one. It winds up in the possession of Tomitake, Takano and Oishi, each of whom gradually come to accept her love under the curse. As Keiichi and Akasaka defeat Rena and Oishi in Mahjong. Oishi fumbles the magatama and Keiichi swallows it as well. Rika lifts the curse, before Keiichi can fall under the power and Rena returns to normal. Rena becomes grateful and expresses her feelings toward Keiichi, though she is not sure if it is part of the magatama. Tomitake and Takano are infatuated with Rena.