My Older Sister is a Sword Saint and My Younger Sister is a Sage is a Manga/Manhwa/Manhua in english language, Adventure 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 Ralk Kingdom is a country of extreme meritocracy, but Razel, the son of the stupid king, has no talent for martial arts, and because he is always compared to his older sister who is a sword saint and his younger sister who is a sage, he gets banished from the kingdom.

From then on, he tries to live as an adventurer in a different country, but his older and younger sisters, who love him dearly, come after him!? A lovey-dovey life of an adventurer with strong and slightly lewd sisters begins!