- 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.
She was chosen from Morning Musume's 12th generation "Golden Audition" to join the group on September 30, 2014, along with Ogata Haruna, Nonaka Miki, and Haga Akane. Makino's image color was officially changed from light pink to pink, the color formerly held by her respected 6th generation senior Michishige Sayumi, on July 12, 2019.
- [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
- [2019.02.02] María 18 años
- [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)
- [2019–] Slugger - Morning Musume '19 Makino Maria no Fun! Fun! MLB! (Serialization)
- TV Programs
- [2015–] Hello! Station (ハロ！ステ)
- [2015–2017] 12ki Relay (12期リレー) (fan club exclusive)
-  Hello Pro no Oshigoto Challenge! (ハロプロのお仕事チャレンジ!)
-  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~)
-  Harukanaru Toki no Naka de 6 Gaiden ~Tasogare no Kamen~ (遙かなる時空の中で６ 外伝 ~黄昏ノ仮面~) (guest)
- [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.