Hyouketsukei Koso Saikyou desu! – Chiisakute Kawaii Shishou to Kekkon suru Tame ni Saikyou no Majutsushi wo Mezashimasu is a Manga/Manhwa/Manhua in english language, SUGGESTIVE series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

The Hermes family has been producing excellent magicians. However, it was discovered that their third son, Frey, was only suited to the unpopular ice attribute in the modern era. As a result, Frey was looked down upon by those around him and was exiled from the Hermes family.