Oniichan dakedo Ai sae Areba Kankeinai yo ne!

This is a a list of series that I'd categorize as "traditionalist" H&E.

This label isn't an indication of things such as quality or originality. This category is trying to indicate H&E series that fit best into the sensibilities of a Golden Era Harem&Ecchi series, which is when the genre was at its peak in popularity and output.

These are series I believe will appeal to people who prefer things like a greater emphasis on the harem itself, character dynamics and interaction, and a more balanced approach between the H&E aspects of the series and the other aspects it will possess, i.e. comedy, action, what have you. These series will also feature a diminished emphasis on the MC - instead tending to use him more as a stagehand to facilitate intimate interactions and ecchi scenes - and will tend to use narratives more as vessels for the harem aspects, ecchi scenes, or character interactions.

A list of Romance/School focused animes. There are also some comedy animes, besides some drama but not a heavy one.

I wrote a note in every anime I've watched.

Check the other rom-com stacks for more recommendations.

Part 2: https://myanimelist.net/stacks/3212
Part 3: https://myanimelist.net/stacks/3214

Places, images, songs, famous personalities, little mentions... Any appearance of Argentina in anime (Not manga).
I will update the list when I see or find out about any other reference.

Where siblings, cousins, or those of close relations have romantic thoughts about one another, whether that's a good thing, or a bad thing. Either way, it's a type of love story some may enjoy.

Anime that feature canon bisexual characters.

(the following reviews may include spoilers)
also KEEP IN MIND: many of these are appropriate for adults only!

stories of siblings being more than just siblings with one another as a main focus in the series (not necessarily romantic, though a lot of these are). everything goes from mild brocon/siscon to almost hentai. (no actual hentai is included.)

these anime are organized roughly in order from most wholesome to most perverted. i also include a short synopsis of each one along with some useful info, hopefully it can be helpful in picking a new show to watch. just keep in mind that not all of this is worth watching, i just want to give you all the options.

i only included the main entry [with one exception, for good reason] if a series has multiple seasons/ovas/movies etc. (no stacking the list with random ovas here!)

ALSO NOTE: this list is under construction, all the entries at the bottom without a synopsis i have yet to watch and categorize.

i've moved some entries to https://myanimelist.net/stacks/35625

at least according to this image
https://i.kym-cdn.com/photos/images/newsfeed/001/488/038/a06.jpg

Sequels are not included in the list

For those with little sister fetishes, here are some Animes in which there is love between or on the one hand between sister and brother

Romance between siblings, cousins. This list contains blood related, step, adopted and cousins. Also check out the part 2 of this theme. And also check out the incest hentai interest pack if you watch incest hentai.

I have watched every show on this list and i have ranked them in my personal viewing experience and not in amount of incest, for example elfen lied have cousins complex and it is not that much but I still ranked it high

Romance anime that are set in the (kinda) real world, adapted from light novels.

Whether identical, fraternal, alike or different. Whether main characters, side characters, or only in one episode, all these shows have twins.

If there are two anime in the same franchise on this list, that means there’s a new pair of twins introduced.

Part 2: https://myanimelist.net/stacks/31892

Lovely romance Anime that I recommend you try.

Various parody shows, mostly friendly or not really, making fun of any genres, character archetypes or premises.

Anime which didn't adapt the LN fully

A collection of non-H anime with a focus on sibling relationships. The relationship between them must be the primary character relationship of the anime's narrative or have heavy romantic or sexual implications. Same sex siblings are only included if they are explicitly romantic or sexual.

This list contains anything with Incest Score 38-40.

You can find all my lists for this subject here:

Tier 1 - Incest Score 44-50:
https://myanimelist.net/stacks/48413
Tier 2 - Incest Score 41-43:
https://myanimelist.net/stacks/48414
Tier 3 - Incest Score 38-40:
https://myanimelist.net/stacks/48415
Tier 4 - Incest Score 35-37:
https://myanimelist.net/stacks/55956
Tier 5 - Incest Score 32-34:
https://myanimelist.net/stacks/55957
Tier 6 - Incest Score 25-31:
https://myanimelist.net/stacks/55958
Unranked:
https://myanimelist.net/stacks/48416

Explanation of Incest Score:
https://myanimelist.net/blog.php?eid=904530

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Tags: brothers, sisters, twins, imouto, otouto, onii-chan, onee-chan, wincest, family, taboo, forbidden, love, romance, blood, related, step, adopted

Less of a recomendation list and more of a list of series with really good imouto characters according to this rando on the internet.

Not including little sisters that are confusing to classify like illya or nono. Also, these are all brother-sister relationships.

Bonus: Amane from Tenshi Souzou Reboot

Honorable mentions:
Nezuko > Should be on the list, but the slot of non-lewd sister already belongs to komachi.
Ruby > Cant really judge her since I have not seen season 2 of OnK yet

may make changes later...

the real world needs these kinds of imoutos!!!!