YMMV / One: Kagayaku Kisetsu e

• Adaptation Displacement: Chances are, if you know about One, it's because its characters are in Eternal Fighter Zero.
• Base-Breaking Character: Since the 2023 remake came out, fans have been split on whether Kohei is an interesting, compelling protagonist or a complete Jerkass whose actions towards his love interests are too mean-spirited and cruel to make him come anywhere close to being sympathetic or likeable in any way, with many being completely repulsed by how he tried to subject Mizuka to a Near-Rape Experience in her route.
• Cult Classic: Considered a classic by those who know it, the two biggest reasons being it is the predecessor of ''Key/Visual Arts', and that it was a pioneering game in the Nakige genre.
• Fanwork-Only Fans: Doujin Soft games with One's characters, most notably Eternal Fighter Zero, tend to be played far more than the visual novel itself is or the OVAs are watched.
• Harsher in Hindsight: Inverted in how Kohei accidentally runs into Misaki early on in her route. Since Misaki is blind, she keeps calling hello, and when no one answers, she becomes afraid they fell unconscious.
• Just Here for Godzilla: One of the only reasons to see the OVAs or play this visual novel is because One's characters are in Eternal Fighter Zero.
• Mainstream Obscurity: Due to One's characters appearing in Eternal Fighter Zero, many have heard of One, but very few have actually played the original visual novel. It doesn't help that the non-hentai OVA is universally despised.
• Signature Scene: The climax of Mizuka's route where she turns around to hug Kohei from behind as they cross the street in opposite directions is often referenced in fan art and other works. Another version of it is even the final shot of the OVA.
• Spiritual Successor: ONE2: Eien no Yakusoku explains more about the Eternal World but isn't made by Tactics, has different characters, setting, etc. It also is not translated.
• They Changed It, Now It Sucks!: Many fans consider the non-hentai OVA to be guilty of this. It was only loosely based on the game, the characters get changed, and watching it is one big slog. The hentai OVA however sticks very close to the original story.
• Uncertain Audience: The OVA adaptations have no idea who they want to appeal to. The story and characters are unexplained to those who haven't played the visual novel, and almost none of the iconic scenes of any of the character routes are shown, alienating those who have played the visual novel. In fact, the events even directly contradict the canon of the visual novel.
• The Woobie:
  • Mio. A clumsy, Cute Mute with No Sense of Direction who always tries to maintain a cheerful attitude despite people constantly ignoring her. Her dedicated route only magnifies her woobieness.
  • Mayu is a middle-schooler with no friends her age, no social skills, and is introduced (if she's even encountered) while in the middle of burying her beloved pet ferret, Myu. Even as Kohei and Mizuka take her under their wing and bring her to their school for a few weeks, she struggles heavily with basic operations such as buying lunch. Her telling her stepmom, "I'm doing my best!" and not in a positive manner only makes one want to hug her more.
• Woolseyism: Part of the common route involves helping Rumi with a kanji test. Both the fan and official English translations change it to a vocabulary test.