Download Natsuiro Lesson ~the last summer time v1.13 (W...

A secret lovey-dovey lesson with a sheltered young lady ♪

Through a series of coincidences, the protagonist ends up becoming the private tutor of a sheltered young lady.

In the private space shared by just the two of them, their hearts and bodies slowly draw closer… until their relationship turns intimate…

This is a real-time touch game controlled with the mouse.

Stroke her head, undress her, fondle her breasts, have H…

As you raise her affection through touching, her reactions change.

Sannomiya Natsuhi (CV: Akari Mei)

A sheltered young lady. Shy but kind-hearted.

She is curious about sexual matters, yet knows almost nothing about them.

She is a little self-conscious about her slightly plump figure.

A simulation game where you raise the heroine’s affection through conversation and H scenes.

There is no game-over from choosing the wrong option and making her dislike you, so you can play at a leisurely pace.

※ Some choices affect the endings, but confirmation prompts and recovery options are provided.

Plenty of everyday scenes.

Enjoy relaxed conversations with the heroine.

The animations prioritize immersion and are carefully crafted to match each individual voice line.

The production aims to keep facial expressions as consistent with the voice as possible.

Depending on the H scene, you can change her into a swimsuit, bunny outfit, erotic cat costume, bondage gear, and more.

2025-10-25: Bug fixes – Update addressing Unity vulnerability issues.
2025-06-06: Bug fixes (Ver 1.12) – Fixed inability to operate in bath scene, non-functioning in some language regions, and scenario typos.
2025-02-24: Bug fix – Fixed issue where controls could freeze when saving.
2024-12-30: Bug fixes & content additions – Added piston speed adjustment, ability to move legs during bed H, CG gallery mode, and various bug fixes.
2024-11-07: Bug fix – Fixed inability to progress in auto mode during Day 4 pool scene.