I should have guessed Naito's dad and the Chief were together, from the previous chapter in the after-story section where they're both in towels, but it still surprised me!
Now we know when the Chief said in the previous one, "It would have been impossible for anyone to resist a Yumema..." he was speaking from personal experience!

Base +6, Lady-Akane +5, mindytheminx +5, bob1909bob +6, Cn0k31th +4

English Chronology:
Part 1 - https://e-hentai.org/g/1548280/341f84c18a/
Part 2 - https://e-hentai.org/g/1549561/30570b0b93/ (this)

Raw (Japanese): https://e-hentai.org/g/1541305/e547f9b86e/

Base +13, bob1909bob +6

thank you for sharing 🙏

Base +2, EmmanGr +7