Title : Cuckolding Diary – Sumire Shirasaki
Original Title : ネトラセキロク -白咲純恋-
Language : English
Developer : Rain Shelter Frog
Released date : 2025-02-14 (en)

We decided to try cuckolding to finally have sex...
After moving from the countryside, I reunited with my old friend, Sumire Shirasaki. On the day we received our acceptance letters, I confessed my feelings to her. Though we'd been dating for a while since then, we hadn't even kissed...

Sumire, having grown up in a sheltered rural environment, was incredibly naive about worldly matters. Her knowledge about sex was limited to what she learned in health class textbooks - she was pure and innocent in every sense.

Because of this, I couldn't even bring myself to ask for a kiss, fearing she might come to hate me...

Then, during spring break, I finally gathered my courage during our amusement park date and told her "I want to kiss you."
Her response? Of course, it was yes! Not only had she wanted to kiss me too, but she even said she wanted to do "anything" I wanted!

While surprised by her words, I couldn't help but feel excited. Though I had intended to keep our relationship pure and wholesome, I was still a man - there wasn't a day that went by when I didn't think about having sex with Sumire...

After our amusement park date, back at my place, I told her my true feelings... that "I want to have sex." To my surprise, Sumire happily accepted, saying she wanted to give me her "first time"!
And so we began to make love, but...

I finished right after entering her...
Our "first time" ended in failure.
Though Sumire consoled me saying "there's always next time," during our second attempt, the trauma from our first try left me too nervous to even get hard...

Determined to solve our bedroom troubles, Sumire confided in a friend.

Her friend's advice was simple: "You need to make him so aroused that it overwrites his anxiety" and "To do that, you need to know his kinks."
When Sumire searched my room, she discovered... my collection of netorare (cuckolding) manga.
At first, she was shocked by this fetish.
However, after discussing it together, we decided to try cuckolding to help me get aroused.

Will this "cuckolding arrangement" finally help me give Sumire the satisfying sex she deserves...?

Characters
ネトラセキロク -白咲純恋-【Cuckolding Diary -Sumire Shirasaki-】 [雨宿り蛙]
[Sumire Shirasaki]
・Moved from the countryside to be with the protagonist.
・Has limited sexual knowledge, only knowing what was taught in health class.
・Has a gentle personality but is naturally naive and rarely doubts others. She also has little sense of caution.
・Of course, the protagonist is the one she loves! They're already dating when the story begins, and she'll do "anything" for him!
・Decides to try cuckolding for the protagonist's sake!

About This Game
・This is a linear, combat-free game focused purely on story events. Please note this before purchasing.
・The protagonist's name can be freely changed.
・Save data from the trial version can be carried over to the full game.

[Bug Reports]
Please report any bugs or issues here↓
https://ci-en.dlsite.com/creator/7038

To help us fix issues quickly, please provide as much detail as possible about the bug!
We may also ask for your save data to identify the cause, so your cooperation would be greatly appreciated!