^I think Restore is a better term for his magic. Sounds a lot better than Regrowth and more fitting, too.
ALERT! On Jcafe, ZeroUrashima and aespire have released stunning new information on Maya, the current head of the Yotsuba and her enigmatic magic "Night".
Spoiler for Maya Yotsuba and Night:
Maya was kidnapped, raped and lost her abilities to reproduce when she was 12. She was then used for a human experiment and probably gained new powers there. I have no clue where those info come on but since it's on wiki, it's probably from a reliable source.
I suck at translated scientific stuff (coz I suck at science and not used to those terms) so take what I say with a grain of salt.
On a side note other Jap MKnR wikis don't seem to cover those information about her being raped and her "Night" ability's description. I too wonder where the source came from.
e.g.
http://www49.atwiki.jp/mahouka/pages/70.html
http://dic.pixiv.net/a/魔法科高校の劣等生
Can someone translate it into english?
Her spell lets her control the distribution of light (the wavelength maybe?) to make it in a state that can bypass anything (like X-rays but worse maybe?), lets her set lines and balls in the space to control the direction of light (kinda like using mirrors maybe?) and let her strike down the enemy no matter what type of protection he has. Name is Meteor Line, evem Juumonji Family's Phalanx can't defend it. Bad... affinity(?) with Tatsuya because it is a spell that acts on space and Tatsuya can destroy it quickly.
This site's review mentions Maya's father Yotsuba Gensou (killed the guy that kidnapped and raped Maya then died, wasn't in web version)
http://book.akahoshitakuya.com/cmt/24335638
I guess kinda like lets her accumulate light, change its wavelength so that it's unblockable and burns down the enemy or something. That's how I understand it. I don't get why he brings in the glass thing though. Even with a glass with high transparency, you can't bring it to 100% "penetrating". I hate Physics <.<
Their exact words.