Sayounara, Eden.

Tomoko, a 38-year-old housewife who lives in her hometown, has an adopted son, and lives with her mother. She spends her ordinary days thinking, "This is paradise." Even when she meets her first love again at a high school reunion and is invited to a hotel, Tomoko still cannot stray from the path. Then, a mysterious young man named Takuto appears before Tomoko, disrupting her daily life.

(Source: Natalie, translated)