Yamato's best bud, Yasunobu, has dragged Yamato to karaoke and hooked him up with a cutie named Yui. Then Suzuka passes by and sees Yui hanging all over Yamato. Suzuka is not amused, and she leaves for a track-and-field training camp. Now poor Yamato is as lonely as can be. Never fear, Yasunobu has a plan! Should Yamato be worried?