UMEMARO 3D Timeline

''Note: This article is based far more on conjecture and speculation than the rest of the content on the UMEMARO 3D Wiki, and as such should not be taken to be canon. It is merely a suggested timeline in an attempt to put together something cohesive and comprehensible for the canon.''

The timeline of the UMEMARO 3D canon is never made explicitly clear; there are sequels and prequels, and these are defined well enough to be placed in absolute terms, but specific time periods and gaps between releases are very much undefined and, generally, completely subjective. This timeline is based on both absolute details, e.g. that OMEGA 2 is a direct sequel to OMEGA, occurring within the span of a day after OMEGA, and context clues that may not be what they seem, e.g. that Work in Progress takes place before the OMEGA games because of the characters that are still alive in it. Author’s intent is not particularly available, and as such, much of this timeline is to be considered nothing more than speculation.

Canon Placement
The two easiest sets of releases to place are the OMEGA saga, consisting of Twin Succubus, OMEGA 1, Dr. Sugimoto's Lecherous Treatment, and OMEGA 2, and the Shoko origin saga, consisting of The Chiropractor, Semen Analysis, and Sugimoto Gynecology Clinic. Sexy Trainer Shoko Sugimoto can also be loosely classed with this saga.

The OMEGA saga is the current endpoint of the timeline, and all four releases in the saga were released in chronological order, spanning a roughly 24 hour period.

Meanwhile, the Shoko origin saga is the earliest point in the timeline, though The Chiropractor predates Sexy Trainer Shoko Sugimoto by several years, which itself predates Semen Analysis and Sugimoto Gynecology Clinic by several years.

Furthermore, The Crazy Female Teacher directly references the events of Mai, and Lewd Bomb Bust Female Teacher references the main male character's exploits in the two previous videos, making these three releases sequential.

Speculative Placement
The rest of the releases are the central issue when attempting to build a definitive timeline. These uncategorized releases - Aya through Lewd Consultation Room and Work in Progress - can generally be classed as being between the two sagas, with Aya through Lewd Consultation Room comfortably being classed as contemporaneous (happening simultaneously, more or less), with the above-noted sequence included. In a more granular sense, Mai can also be said to take place after Sasa, though this requires (logical) assumptions that are based very little in what’s provided in the videos. Cheeky Girl and Horny Girl are contemporaneous with each other, and overall take place before OMEGA due to the presence of Ohara in Cheeky Girl, and Pizza Takeout Obscenity takes place somewhat contemporaneously with Sexy Trainer Shoko Sugimoto due to the presence of Ichijo in both.

Work in Progress can be slotted in directly after these eight releases, based on the Japanese school year. Work in Progress explicitly takes place in the summer; in the other releases, all of the girls are wearing short-sleeved uniforms, placing them in the spring, which, for the sake of simplicity, would slot them in before the summer break of Work in Progress.

Gaps Between Releases
What's far more difficult to determine are the gaps in time between releases. The only time period that is known for sure is the sequence of events from OMEGA 1, through Lecherous Treatment, to OMEGA 2; these three releases take place over the span of a single day and night. OMEGA 1 begins in the morning and runs through to the night. Lecherous Treatment seems to take place in the early evening, based on the outside lighting, which would match up decently enough with Shoko's appearance in OMEGA 1 and her absence from OMEGA 2. OMEGA 2 then takes place from that night through to the dawn of the next morning, for a total of around 22 or 23 hours.

Beyond this, however, placement becomes far more difficult. The girls in almost every release wear springtime school uniforms, likely for ease of modeling, and because long-sleeved uniforms are less aesthetically pleasing. Because of this, the original releases may take place a year before Twin Succubus, and the rest of the OMEGA saga may take place a year after Twin Succubus, for a two-year total. This plays fast and loose with the canon, and is based entirely on design decisions where UMEMARO did not consider timeline implications whatsoever. The one-year gap between SENPAI and Twin Succubus could also explain Shinnosuke's apparent rise in status, though he is still clad in a school uniform in Twin Succubus.

Work in Progress necessarily takes place before Twin Succubus, in the summer immediately after the original releases, as several characters who appear in Work in Progress are killed during the OMEGA saga.

Placing the Shoko origin saga in terms of how many years it takes place before the rest is equally difficult. The Chiropractor takes place in March, when Shoko is 18, as she has just graduated; this should logically place it over 10 years prior to Lewd Consultation Room, and maybe at or over 15. Sexy Trainer Shoko Sugimoto features a young Shoko who is working as a personal trainer in a gym; UMEMARO also explicitly confirmed this iteration of Shoko to be younger than her OMEGA iteration, and she appears visibly younger than her iteration in Sugimoto Gynecology Clinic. By Semen Analysis, Shoko appears to be a doctor; Shinnosuke also appears, looking about the same age as he does in Twin Succubus, though Ohara seems slightly younger. Though it is arbitrary, Semen Analysis and Sugimoto Gynecology Clinic could take place about two years prior to Lewd Consultation Room, which could place them 13 or so years after The Chiropractor. The gap between Semen Analysis and Sugimoto Gynecology Clinic is likely a month at most, considering that Shoko knows about Chiha's affair and demonstrated that she has always been capable of spying on them.

It is worth noting, once again, that UMEMARO does not produce these releases with a solid timeline in mind; the information above is almost all conjecture, and very little of it is based in actual canon. This timeline is not to be taken as fact, or even as particularly accurate guesswork - it is merely a series of wild guesses in an attempt to rationalize timeline placement for each of these releases.

The Timeline
This timeline uses OMEGA'' as "Year Zero," referred to on the timeline as "0 OMEGA", as a reference point for the other dates in the timeline. All dates are calculated in relation to this baseline.''

-15+ OMEGA

-10 OMEGA

-3 OMEGA

-2 OMEGA, Spring

-2 OMEGA, Summer



-1 OMEGA, Spring

0 OMEGA, Spring