Ibara Shiozaki trains as a hero in U.A. High School's Class 1-B. Her defining feature is green, thorn-covered vine hair, usually maintained just above her waist, with two vines crossing her forehead. She wears a plain white robe and dark brown or black knee-high boots as her hero costume.
Shiozaki embodies a modest, courteous, and deeply religious nature, frequently invoking divine beings and naming her techniques with biblical terminology. While typically humble and soft-spoken, she displays sharp vindictiveness towards perceived unethical conduct, such as harshly criticizing Class 1-A or wishing "the fires of hell" upon Jurota Shishida for his sins. She values fairness and honesty, refusing to engage in deceitful tactics like Neito Monoma's Sports Festival sabotage plan and expressing regret for covertly stealing Minoru Mineta’s headband.
Her Quirk, Vines, enables her to grow, control, and detach vine appendages from her head for offense, defense, and mobility. These vines regenerate with sufficient sunlight and water. Key techniques include:
- **Via Dolorosa**: Spreading vines across an area to ensnare targets.
- **Crucifixion**: Encasing opponents in suspended vine spheres to immobilize them, effectively insulating Denki Kaminari from his own electricity.
- **Faith’s Shield**: Erecting instant vine barriers for protection.
- **Big Tree**: Constructing defensive walls while capturing opponents with roots.
Her stationary combat style leaves her vulnerable to high-speed or close-quarters opponents, as Tenya Ida demonstrated by swiftly forcing her out of bounds during the Sports Festival tournament. She ranked fourth in the U.A. Entrance Exam through balanced combat and rescue points. Stat profiles note her technical mastery (5/5 in Technique) alongside average physical power and speed.
Her documented journey includes:
- **Entrance Exam Arc**: Achieving fourth place overall.
- **U.A. Sports Festival Arc**: Placing fourth in the obstacle race; advancing to the tournament after Itsuka Kendo’s team yielded; defeating Denki Kaminari but losing to Tenya Ida.
- **Forest Training Camp Arc**: Succumbing to Mustard’s gas during the villain attack; rescued by Tetsutetsu Tetsutetsu and escorted to safety by Yui Kodai.
- **Joint Training Arc (vs. Class 1-A)**: Acting as bait against Tsuyu Asui’s group; capturing Eijiro Kirishima and Denki Kaminari; voicing moral objections to Jurota Shishida’s tactics; brainwashed by Hitoshi Shinso and turned against her teammates, contributing to her team’s loss.
- **Endeavor Agency Arc**: Interning with the Lurkers (Edgeshot, Kamui Woods, Mt. Lady) to enhance team coordination.
- **World Heroes’ Mission**: Assisting the Lurkers against Humarise in Cairo; praying for the wrongfully accused Izuku Midoriya; aiding in locating a Trigger Bomb and quelling city-wide chaos.
- **Paranormal Liberation War Arc**: Fighting against the Paranormal Liberation Front; apologizing to Gigantomachia for the ambush.
- **Post-Graduation**: Becoming a professional hero with her Class 1-B peers.
Religious symbolism defines her character: thorned vines evoke a crown of thorns, her costume resembles a robe, her favorite food is bread, her September 8 birthday aligns with the Virgin Mary’s, and her hero name is "Vine" (formerly "Maria").