Chapter 73

Loyalty Challenge is seventy third chapter of the Grand Blue manga series.

Summary
The chapter begins with Iori, Kotobuki and Tokita, trying to make Kouhei lose his memory by alcohol. Members of PaB are discussing what to get for Kaya Mizuki's wedding, at the mention of any gift, Kouhei starts to vomit blood, completely upset and distraught over the fact that she's getting married. Aina remembers a book she saw in Chisa's room about hypnosis, and successfully hypnotizes Kouhei into directing his love for anime to his second most treasured part of his life, which, surprisingly, is Aina Yoshiwara. Before this, Azusa and Iori first trials the hypnosis book by asking Nanaka Kotegawa to tell them extremely private information, it works. Iori then asks Chisa if she wants to keep Kouhei's hypnosis equipment, but Chisa stunningly says to Iori, "Right now for, Iori is more important than the sea", and follows it up with "Why does the fact that I love you surprise you all of a sudden?" Then, Iori realizes that the hypnosis accidentally was used on Chisa aswell. At the university, the male audience in the lecture are giving Iori the classic death look, with Yamamoto and Nojima especially furious.

Characters in Order of Appearance

 * Iori Kitahara
 * Ryuujirou Kotobuki
 * Shinji Tokita
 * Kouhei Imamura
 * Azusa Hamaoka
 * Nanaka Kotegawa
 * Chisa Kotegawa
 * Aina Yoshiwara
 * Hajime Nojima
 * Shinichirou Yamamoto