At least one of the heroines is a brocon, a person who is always passionate about her brother (usually the protagonist) and she would do anything for him. Note: This tag is used to describe heroines personality. For actual sister connection please use the sister heroine tag.
| Name | Similarity |
|---|---|
| Brother Complex Personality | 42% |
| Younger Sister Role | 24% |
| Incest Engages in (Sexual) | 20% |
| Older Brother Role | 19% |
| Full Sister Role | 18% |
| Twin Tails Hair | 17% |
| Boobjob Engages in (Sexual) | 17% |
| Full Brother Role | 16% |
| Older Sister Role | 16% |
| Cowgirl Subject of (Sexual) | 16% |
| Ribbon Hair Tie Clothes | 16% |
| Sitting Sex Subject of (Sexual) | 16% |
| Missionary Subject of (Sexual) | 16% |
| Sixty-nine Engages in (Sexual) | 16% |
| Thigh-high Stockings Clothes | 15% |
| Virgin Sex Engages in (Sexual) | 15% |
| Deredere Personality | 15% |
| Handjob Engages in (Sexual) | 15% |
| Standing Sex Subject of (Sexual) | 15% |
| Cooking Engages in | 15% |