OVA

2
Rx

Isourou Tengoku

Based on the manga by Aranaga Hikaru (あらなが輝)
Ova Fall 1996 5.4
1
Rx

Issho ni Ecchi

After answering the summons of Momoka, the school nurse, the protagonist is forced to engage in various sexual acts with her. Later, the protagonist accidentally witnesses Momoka's younger sister, Maron, masturbating. He is discovered and Maron counterattacks by stripping him and giving hand and foot jobs. One thing leads to another and he ends up taking her virginity. Finally, the three of them go to a public bathhouse and end up in a threesome play.
Ova Fall 2010 5.85
6
Rx

Issho ni H Shiyo

Your childhood friend has no place to spend the night. She asks you if she could stay at your place. You obviously agree. She comes a little drunk and upon seeing that you have no girlfriend and fap only to hentai (tissues), she decides to make you a man. (Source: AniDB)
Ova Fall 2009 6.78
1
1
PG-13

Issho ni Sleeping: Sleeping with Hinako

Once again happy to have someone watching her from the real world, Hinako wants to spend some quality time together with her viewer, even though it is quite late. Unwilling to let the opportunity pass her by, she allows her viewer to sleep alongside her. Over the course of the night, Hinako offers the viewer a rare intimate look at her various nighttime habits. [Written by MAL Rewrite]
Ova Fall 2010 4.42
PG-13
1
1
4.72
Rx
2
6.04
R+
1
1
6.22

Isuca: Gokuraku

Ova Fall 2015
G
1
1
5.65

It's My Life

Ova Fall 2019
Rx
1
7.4

Vampire Vixen

Ova Fall 2014
Rx
2
6.61

G-Spot Express

Ova Fall 2005
Rx
2
5.61

Ito wo Yoru

Ova Fall 2024
Rx
2
5.47

Itoshi no Kotodama

Ova Fall 2002
R+
2
5.87

Itsudatte My Santa!

Ova Fall 2005
Rx
1
6.49

Karma Saiyuki

Ova Fall 2007
R+
2
2
5.67

Izumo

Ova Fall 1991
Rx
5
5.89

Izumo (2003)

Ova Fall 2003
Rx
3
5.75

I☆Can

Ova Fall 2010
Rx
2
7.23
PG-13
2
5.25

Wild Cardz

Ova Fall 1997
R-17+
1
6.46

Je T'aime

Ova Fall 2010
Rx
1
6.65
R-17+
1
1
1
5.59

Black Lion

Ova Fall 1992
R-17+
1

Jigoku Koushien

Ova Fall 2009
PG-13
3
3
7.11

Hell Teacher Nube

Ova Fall 1998
PG-13
1
6.1
Rx
2
5.67

Jii Tousaku

Ova Fall 2002
PG-13
1
5.3

Chrono Trigger

Ova Fall 1996