- Birth Name: Makino Maria (牧野真莉愛)
- Nicknames: Maria (まりあ), Makki (マッキー)
- Date of Birth: February 2, 2001
- Place of Birth: Aichi, Japan
- Blood Type: A
- Height: 165.5cm
- Hobbies: Watching baseball games, visiting Tokyo Disney
- Specialty: Ballet, piano, calligraphy, making duck face, drawing
- Favorite Food: Fresh cream, custard, peach, sponge cake, cheese pizza, seedless Kyohou grapes
- Least Favorite Food: Squid (except in school lunch), spicy food
- Favorite Color: Pink
- Favorite Subject: Crafts, art
- Looks Up To: Michishige Sayumi
- Hello! Project groups:
Makino Maria joined Hello! Project as a member of the Hello! Pro Kenshuusei in 2012, and was first introduced at the December "Hello Pro Kenshuusei Happyoukai 2012 ~12gatsu no Nama Tamago Show!~" concert. Prior to joining she participated in the Morning Musume 11th generation audition.
- [2017.12.22] Zouni de Kenka Shite ja nee yo (雑煮で喧嘩してんじゃねえよ) (Miyazaki Yuka, Makino Maria, Kawamura Ayano)
- [2015.11.14] Makino Maria Mini Photobook "Greeting -Photobook-" (牧野真莉愛ミニ写真集『Greeting-Photobook-』)
- [2016.08.06] Maria
- [2017.08.30] Senkou Hanabi (せんこう花火)
- [2018.02.02] Maria 17sai (マリア17歳)
- [2018.08.25] Summer Days
- [2016.12.12] Morning Musume 12th Generation Official Book (モーニング娘。12期 オフィシャルブック)
- [2015–] Morning Musume '15 Makino Maria F Heart (モーニング娘。'15牧野真莉愛 Fハート)
- [2016–] LOVE Berry (Model)
- TV Programs
-  Major 2nd (as Mari, episode 3)
-  TRIANGLE -Trine Angle- (TRIANGLE -トラインアングル-)
-  Zoku 11-nin Iru! Higashi no Chihei, Nishi no Towa (続・11人いる!東の地平・西の永遠)
-  Pharaoh no Haka (ファラオの墓)
-  Pharaoh no Haka ~Hebi Ou Senferu~ (ファラオの墓 ~蛇王・スネフェル~)
- [2015–2017] Morning Musume '15 12ki Nikki (モーニング娘。'15 12期日記)
- [2016–] Morning Musume '16 Makino Maria no Marian♥LOVErin desu♥ (モーニング娘。'16 牧野真莉愛のまりあん♥LOVEりんですっ♥)
- [2017–] Morning Musume '17 no Morning Diary (モーニング娘。'17のモーニングダイアリー)
- [2017–] marukome Morning Misoshiru Nomou yo! (marukome モーニングみそ汁 飲もうよ!)
- Was a finalist in the Morning Musume 11th Generation ~Suppin Utahime~ Audition.
- Her favorite baseball team is the Hokkaido Nippon-Ham Fighters (it used to be the Chunichi Dragons), her favoriter player is Tsuyoshi Shinjo.
- Her favorite Hello! Project songs are "Renai Revolution 21" and "The☆Pea~ce!" by Morning Musume and "Joshi Kashimashi Monogatari (2011 Dorimusu Ver.)" by Dream Morning Musume.
- Her favorite season is winter.
- Favorite flower is rose.
- Favorite sport is baseball.
- Her motto is "Kokkishin", to have self control; don't give into your desires easily.
- Wrote in a magazine that her dream was to become like Michishige Sayumi.
- Thinks her charm point is her long bellybutton.
- Said the thing she wants to do most as part of Morning Musume is appear at the season opening ceremony of a baseball game.
- Before debut the songs she wanted to dance the most with Morning Musume were "Ai no Gundan" and "Toki wo Koe Sora wo Koe".
- Was in the Invention Club and Baseball Club in Elementary school.
- Has the first level swimming ability certification.
- Likes the manga "MAJOR"; was formerly a fan of "Kirarin Revolution".
- Enjoys the television show "Gaki no Tsukai ya Arahende!!" and the baseball section of "Honoo no Taiikukai TV".
- Became a fan of Morning Musume through her 11th Generation audition, during which she wanted to learn more and eventually strongly felt that she wanted to become part of the group.
- Has family friends from Cebu Island in the Philippines.
- Her favorite genres of music are Enka, Disney, J-Pop, Pro baseball team songs, and support songs for Nippon-Ham Fighters team members.