Rin hosts a dinner to celebrate Taiyo's success. Sui warns Taiyo to continue practicing Walking on Flowers as improper use can cripple a person's legs. When Taiyo shares his fear with Mutsumi, she kisses him on the cheek to reassure him and Taiyo finds the box contains a glass marble. Kyoichiro explains it is an optical drive with information laser engraved inside. They return home where Taiyo learns Mutsumi has hired Ayaka as the Yozakuras' maid, and to teach him anti-assassination skills. Shion starts decoding the drive but notes it is old and damaged. Ayaka's attempt to kill Taiyo in his bath causes a misunderstanding with Kyoichiro. Ayaka later notices Taiyo behaving unusually and concludes he is cheating on Mutsumi. Mutsumi has Taiyo walk Goliath, the Yozakuras' 100-year-old artificially bred spy dog who hates Taiyo as much as Kyoichiro. A bomber called Happy the Clown targets them and Taiyo is hurt protecting both Mutsumi and Goliath. Goliath hunts and punishes Happy and afterwards is nicer to Taiyo. Ayaka and Kyoichiro confront Taiyo only to learn Taiyo was actually working with the Hinagiku to procure Dark Sweet, the rarest tea in the world and Kyoichiro's favorite.