Dousei shiteiru Kareshi ga Yasashiku Guigui Semattekimasu

After becoming an adult, Mitsuki coincidentally reunited with her crush from high school, Yuuki. As of late, even though they've moved in together, they've had little time for anything due to work. After her company's event was over, they were both finally able to take time off, but. He's normally so gentle, but this time it seems like he can't stay calm.