The protagonist (you), admires his senior at work, Asami Senda. She's his mentor at work and the ace of the company. A woman gifted with both beauty and brains plus a pleasant personality, she is sought after by many business partners looking to negotiate contracts.

After the company drinking party, such a high caliber woman suddenly invites him to an after-party with just the two of them. They miss the last trains of the day and the two of them stay at a hotel; Naturally, there's no way they'll just go to sleep without doing anything...

(Source: FANZA, translated)

1. Mou Ichido Nominaosanai? (もう一度飲みなおさない？; Would You Like Another Drink?)
2. Senpai to Honjitsu Nidome no Ohayou (先輩と本日2度目のおはよう; Senpai And Today's Second "Good Morning")
3. Gyaku Kouka (逆効果; Opposite Effect)
4. Senpai no Uchi de Nonda Ato (先輩のうちで飲んだあと; After Drinking at Senpai's Place)
5. Senpai to Shucchou (先輩と出張; Senpai And Business Trip)
6. Senpai wa Umi ni Ikitai (先輩は海に行きたい; Senpai Wants To Go to The Ocean)
7. Senpai to Umi (先輩と海; Senpai And The Ocean)
8. Senpai to Hajimete... (先輩と初めて…; Senpai And The First Time...)
9. Senpai mo Ano Toki Yoyuu Nakatta (先輩もあのとき余裕なかった; Senpai Didn't Have The Luxury To That Time)
10. ~Hajimete no Yoru no Ichibushijuu~ (～初めての夜の一部始終～; ~Beginning to End of the First Night~); kakioroshi

Notes:
- Originally published on Twitter, the 10th chapter is exclusively for the physical release.
- A live-action AV adaptation (URE-095) was released on June 27th, 2023.