Natsuiro Lesson: The Last Summer Time

by The 18th Chikamichi

Uncensored Windows

Versionv1.12a

EngineUnity

Updated2025-06-09

LanguageEnglish

About Natsuiro Lesson: The Last Summer Time

Natsuiro Lesson: The Last Summer Time is a Japanese-made dating sim built in Unity by The 18th Chikamichi, using 2D animated Live2D artwork. The player controls a male protagonist who suddenly starts giving private lessons to an isolated young woman. Within the isolated place they occupy, their relationship becomes increasingly intimate. The game is played with the mouse, offering real-time interactions that change according to rising affection.

The current build is v1.12a, dated June 6, 2025, and the project is still being updated. It runs on Windows, is available in English, and is uncensored. The latest changelog lists bug fixes rather than new content: it addresses a bath scene becoming uncontrollable, improves compatibility in some foreign-language areas, and corrects mistakes in certain scenarios. Earlier notes mention scene freezes, save-related control issues, voice lines, and interface improvements, but the present update focuses on stability and text corrections.

Developer's description

He protagonist unexpectedly becomes a private tutor for a sheltered young lady. In the secluded space they share, their hearts and bodies gradually draw closer, eventually leading to a deep, intimate relationship. This is a full-fledged Live2D interactive touching game titled Natsuiro Lesson: The Last Summer Time by The 18th Chikamichi. Using the mouse, players can engage in real-time interactions such as petting her head, undressing her, fondling her breasts, and engaging in sexual activities. As you continue these interactions, her reactions will change based on the increasing level of affection.

Natsuiro Lesson: The Last Summer Time screenshots

Download Natsuiro Lesson: The Last Summer Time v1.12a

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Changelog

Version 1.12a (June 06, 2025) Fix the following bug ・It becomes uncontrollable in the bath scene ・Not working in some foreign language areas Mistakes in some scenarios. Version 1.11a (February 24, 2025) -Bug fixes Fixed a bug that sometimes prevented the game from being controlled when saving Version 1.05a (November 7, 2024) - Fixed an issue in the pool scene on Day 4 where auto mode could cause the game to freeze. - Minor performance improvements and text adjustments for smoother gameplay. Version 1.04 (October 15, 2024) - Introduced new voice lines for interactions during evening study sessions. - Resolved occasional crashes when accessing the gallery after completing all endings. - Improved UI for the settings menu, making customization easier. Version 1.03 (September 20, 2024) - Added bonus CGs for players who complete the "True Ending." - Adjusted the balance for interaction mechanics to enhance engagement. Version 1.02 (August 31, 2024) - Official game release. Included initial bug fixes and optimizations identified during pre-release testing. Version 1.01 (July 15, 2024) - Fixed early crashes occurring when starting new games on certain hardware configurations. - Updated some character animations to fix clipping issues in close-up scenes. Version 1.00 (June 30, 2024) - Initial release of the game. Included the base content, such as main character interactions, multiple routes, and basic functionality.

Player reviews

Player rating 5.0 / 5 · 20 ratings

Written reviews 20 · avg 4.4★

Positive (4–5★) 85%

Latest review 2026-03-14

What players say

Most players enjoy it, praising animation and touch gameplay, though some report bugs, translation issues, and limited content.

5★ 12

4★ 5

3★ 2

2★ 0

1★ 1

Players like

Fluid Live2D animations and expressive reactions
Responsive touch and feel mechanics
Cute heroine and sweet relationship-building
Short, not overly grindy progression

Common complaints

Poor machine translation and formatting
Random stops and poor performance
Limited scenes and repetitive content

Best for players who enjoy cute Live2D touch sims and sweet relationship-building.

Summarised from 20 written player reviews.

TankyThomas 2026-03-14 ★★★★★

5/5 lovey-dovey . Extrememly well made animations, good system and gameplay, enjoyable story. Vivid and detailed description on how the heroine developed an attachment on the protagonist. One of my personal best in 2025. The game could benefit from more…

FarWest88 2026-02-24 ★★★★★

The game doesn't work, it stops randomly with a CG and some background music playing and nothing to do, no text, nothign to click to progress the story. It looks good, the presentations is good, but sadly it doesn't work…

RpgLover(Temp) 2025-10-30 ★★★★★

The initial presentation is worthy of 4 star, the animation physic is smooth and small detail like sweat droplet really add to realism. But that's all for the initial, from day 3 and onward the game become caressing simulator with…