Tipsy in Sake & Love.

Matsuko is a 32-year-old office lady who loves sake and drinks it at home every day. She hasn't had a boyfriend in three years, and even though she doesn't mind being alone, she also wants to find love some day. She's attracted to a cool younger colleague, and when the two of them went out for drinks, he turns out to be the cutest "drunk-dere" ever...? An intoxicating love story between a sake-loving OL and a cool junior!

(Source: Akita Shoten, translated)