 If you liked
Zero no Tsukaima
|
 ...then you might like
Ixion Saga DT
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both where summoned from there world to fight in another world both are teen characters who have no idea why they where summoned if you like one you will like the other i know for sure
Two average guys are summoned to a strange magical world by mistake.
Male leads possess the ability to wield a powerful weapon.
Both have a loli female lead.
Takes place in a medievil-esque land. Ixion saga DT has a mix of past and current time elements though compared to ZNT being more middle age.
Plenty of slapstick comedy.
Male leads search for a way to return to their world.
Big difference with Saito and Kon is that Saito is actually cool while Kon is a complete wimp of a hero.