Originally published in Japan in 2019 by Kodansha Ltd., Tokyo as Hananoi kun to koi no yamai, volume 4.
Reads right to left in the traditional Japanese format.
Summary
"Hotaru and Hananoi-kun are officially dating now and it's time to go their first real date as a couple! Hotaru is still worried she's not cut out for romance, but little does she know, her new boyfriend is haunted by his own past, too ..."--Back cover
Contents
First rings -- First brush with the brass -- First petting session -- First birthday with me.