Sasaki gets the hang of his trading operation in the other world right about the time he gets in over his head in the modern world. He's (forcibly) recruited into a government agency for psychics, and his first job is right around the corner.
I wish I'd learned a barrier spell.
.يا ليتني تعلمتُ تعويذة حاجز
Ich hätte eine Schildformel lernen sollen …
Ojalá supiera algún hechizo de defensa.
Ojalá supiera algún hechizo de defensa.
J’aurais dû apprendre
de quoi me défendre.
Avrei dovuto imparare
 la magia della barriera protettiva...
Deveria ter aprendido
um feitiço de barreira.
Надо было выучить заклинание барьера.