Hi, I stumble upon some mangas a while ago, read some chapters and moved on without bookmarking them, I know I can't figure oout what they were or if they are even still running...

1. A guy from a swordsman clan enroll into a school divided between swordsmen and mages, he for some reason ended up in the mage class and has the ability to summon any creature controlled by his female friends/classmate as long as he keeps them happy.

2.Apparently the world got invaded by swords that look like humans. The setting is a school and the main protagonist got raised by the top human looking blade alien( ) officer, shenanigan ensue. He has an female friend that turns murderous towards him whenever she's flustered. The sister of his guardians is a school official and has high expectations of him.

3. A guy who was raised on a orphanage has to infiltrate a neighboring country with a female knight to discover relics. His friend is the leader of his country and sent him on that mission for reasons I cannot recall. He also has a power that I can't remember. Sorry for the very vague description....

for #3 could it be Densetsu no Yuusha no Densetsu

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"I rebel; therefore I am" - Goblin Kingdom (novel)
"I won’t tell him not to envy, but that man sure is a bag of b*tchery" - Sevens (novel)
"Well… let’s just have some fun with it." - Sevens (novel)

1. Magika no Kenshi to Shoukan Maou
2. Kenshin no Keishousha
I would agree with 3

I love this section! Thanks guy, I would have never remembered any of those titles without your help.