Harem list and MC photo

Here is the officially harem list (the highest tier)

Grayfia

Koneko

Serafall

Akeno

Asia

???

Kuroka

???

???

???

???

???

???

???

Ingvild Leviathan

???

Ophis

-Concubines

Rias

Mittlet

Kalawarna

Katerea

-Maids

All his current maid in his castle

Can you guys guess the hidden members, I did hint one of them

Someone had showed me a picture that looked really close to I thought but since I have no clue about editing I couldn't add the features I wanted but the MC looks like this but with crimson red streaks in his hair and his left eye silver with crimson red pupil and his left eye is crimson red with silver pupil. The picture would be at the comment section