

Mount Issei was named by Rias Gremory as the mountain didn't originally have a name.A prep school with an innovative Saturday programme, a very active music department, and a track record of sending girls and boys to some of the UK’s top senior schools.ĭragon School, Oxford is a co-ed day and boarding Pre-prep and Prep School for four to 13 year olds.The Dragon Mountain is one of the few places that Dragon Apples grow naturally, which is why Tannin went thorugh great lengths to obtain the territory.Mount Issei is the mountain where Issei Hyoudou trained at to achieve his Balance Breaker. In exchange, Crom Cruach aids Tannin when considered necessary such as transporting the Spectre Dragon egg. In Volume 19, it is revealed that Tannin took in Crom Cruach to stay on the mountain as a guest, providing his with food, clothing and shelter.


In Volume 13, upon Issei's hearing request to help train Riser Phenex, Tannin took the two to the mountains and left them to train under the supervision of two of his dragon subordinates. In Volume 5, Tannin took the current Red Dragon Emperor Issei Hyoudou, to the mountains to train in order to increase his dragon power and unlock his Balance Breaker, as the former Dragon King trained Issei by engaging in multiple sparring sessions together. The reason why Tannin took this place was to obtain a certain fruit called Dragon apples in order for his other kin to survive. It was given and taken under the care of Tannin alongside his many and various dragons that Tannin took from the Human world. The Dragon mountain is also connected to and a part of the territory of the Gremory Clan.
