Mei Hachimoku is an award-winning author of Japanese-language novels, best known for The Tunnel to Summer, the Exit of Goodbyes, Wait For Me Yesterday in Spring, An Autumn in Amber, a Zero-Second Journey, and The Mimosa Confessions. KUKKA is an artist whose delicate and evocative artwork has been used in multiple Japanese-language light novels, including The Tunnel to Summer, the Exit of Goodbyes, Wait For Me Yesterday in Spring, An Autumn in Amber, a Zero-Second Journey, and The Mimosa Confessions.