Matcha Made in Heaven Vol. 4 (Kodansha, 2023)

At first, Chako and Isshin had no choice but to fake a marriage... But finally, they confirmed their feelings for each other and kissed on the night of the summer festival! On the next day, Isshin leaves for Shizuoka alone. The person who waits for him at a major beverage company, Shinomiya-en, is his ex, Hikari. And there are super unique guys, too...?! On the other hand, Chako is in charge of managing Hananoki-en and tackling the hard work at their farm, but she's enjoying herself. That's when Jin finds out about their big secret...?!