The Genius Tamer of the Academy is a Manga/Manhwa/Manhua in english language, Action 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 life of an intern veterinarian who was always working overtime. As usual, I fell asleep while complaining about my situation… “System window…? What is this…” [Synchronizes the story to Han Si-ha’s perspective] I possessed Han Si-ha, the villainous extra in a novel I usually enjoyed reading. ‘Why Han Si-ha of all people! Not only is her magic talent useless, but she’s killed by the main characters in the beginning of the novel!’ I have to find a way to survive! In order to live peacefully without facing or getting involved with the main characters, graduating from the academy is essential. This is such a difficult mission for Han Si-ha, who has 0 magic talent and 0 sociality… If it’s taming, it’s related to my previous job… Should I give it a try? “That… reptile. Trust me.” [You tamed a red dragon] Is this possible…? Maybe I’m a taming genius? Alright, let’s just get to graduation without any problems! But… “Han Si-ha, let’s be on the same team as me.” “Han Si-ha! Don’t you want to go to the alchemy competition with me?” “Han Si-ha… I have something to tell you… It’s important.” The main characters who killed me in the original work are showing interest in me?! Will I… be able to graduate safely?