Synopsis
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
[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!
(English product description provided by the creator.)
| Circle | AmayadoriGaeru |
| Tags | R18, Role-playing, Music, Application, English |
| Price | 1,430JPY |
Editorial Review
Cuckolding Diary positions itself as a narrative-driven adult game that merges role-playing mechanics with music and interactive elements—a hybrid approach that’s gaining traction in the doujin space as creators move beyond static visual novels. The focus on psychological progression and relationship building over purely mechanical adult content distinguishes it from the more immediate gratification-oriented titles currently saturating the market.
The distinctive hook here is the deliberate framing around sexual naivety and inexperience as a central narrative device. Rather than starting from an established dynamic, the game builds toward intimacy through a reconstruction of formative moments: the rural-to-urban transition, the reunion, the graduated escalation from confession to first kiss to explicit exploration. This scaffolded approach to arousal—grounding fantasy in emotional prerequisite—appeals to players who find psychological investment necessary for engagement. The inclusion of music and application framework suggests production ambition beyond the typical static CG compilation; the interactivity likely extends beyond branching dialogue into rhythm-based or real-time decision systems during intimate scenarios.
The synopsis’s abrupt truncation is telling—it hints at the central conflict without revealing the cuckold premise outright, suggesting the game unfolds its theme gradually rather than opening with the full scenario. This narrative restraint is relatively rare in the adult game space, where most titles front their core fantasy immediately.
The target audience here comprises players seeking psychological depth and graduated narrative pacing alongside adult content, particularly those drawn to innocence-corruption or corruption-through-education frameworks with interactive musicality.
This is a solid entry for players tired of immediate gratification designs who value the slow-burn narrative architecture of character-driven adult games. The technical ambition and restraint in premise delivery suggest thoughtful design work.
Official English version available ↓
Get “Cuckolding Diary -Sumire Shira” on DLsite
English Version → Free TrialJapanese Original
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Related Tags:
R18 | English | Application | Music | Role-playing
