- Touya Mochizuki
- Linze Silhoueska
- Elze Silhoueska
- Yae Kokonoe
- Yumina Ernea Belfast
- Kokuyou and Sango
- In the LN when Touya swims down to find the ruins he is able to enter the ruins before running low on air, while in the anime Touya is able to spot the ruins but is unable to enter it before running low on air.
- In the LN when Touya summons the Black Emperor all of the girls are present (Elze, Linze, Yae and Leen), while in the anime only Leen was present
|Anime||Light Novel||Web Novel||Manga|
|Episode 10||Volume 3||Chapter II||Arc 9||Chapter 61||Not Available|
Footnote: † - Partially Nonexistent - 50% or more story line is missing.
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