Artist patron site: https://fantia.jp/fanclubs/7219
Pixiv: https://www.pixiv.net/member.php?id=82301

There's a basic introduction to the Magical Student series here: /g/1235006/6d446f4bb0/
Maki appears in the following doujins:
/g/1226838/68e8b31685/ (ImpactSwing)

-DESCRIPTION-
(info collated from google translate)
Hamachi Maki is a 17 year old schoolgirl that can transform into a brown-haired martial arts oriented magical girl. Her "normal" schoolgirl hair color appears to have been set at grey (it used to be pink, then black). Her ability is called "Third Eye", though I'm unsure of whether this means she can predict enemy moves.

Maki's "combat skill" is rated very highly, similar to Miyako's. However, unlike Miyako, Maki normally fights hand-to-hand and her physical strength is correspondingly high.

Google translated artist description: "Maki Hayami (17) ... Magical school student who was asked to investigate MWN. Fight only with your own potential without using ability. There is a capability once, you can increase your eyesight and increase visibility. Although the amount of information that can not be processed originally, Maki looks okay."

Maki's first fight was against a large purple man, which she won (p11). She later lost her virginity to a spider-like creature that laid eggs inside her (p18).

Maki lives in the same city as Shea.

-CONTENTS-
(all guesswork from google translate)
p1-7: cover, character sheet, development sketches
p8-10: Fighting a dissolving slime monster in -ImpactSwing-
p11-17: Canonically Maki's first fight against "Ronge"
p18-34: Maki's first canonical defeat (i.e. loss of virginity), trapped in a spiderweb and impregnated.
p35-57: Maki vs "Mantis-type"
p58-72: Maki vs "Odorous Meat Clump"
p73-76: Maki fingered roughly by ghostlike creatures.
p77-106: Ronge returns to take his revenge on Maki.
p107-110: Maki vs Slime
p111-113: Kidnapped.
p114-118: "Trampled"
p119-120: vs "Small demons"
p121-123: Unknown story
p124-126: Unknown story
p127-130: Unknown story
p131-134: Unknown sketches
p135-139: Vs zombies with Miyako
p140-145: Vs Classmates

OTHER CHARACTERS:
/g/1235006/6d446f4bb0/ (Character Guide)
/g/1263358/13167a3611/ (Miyako)
/g/1312182/50e53dbdad/ (Miri)
/g/1307797/7c8a2a0498/ (Alice)