Dai League Ball Training Cast

**Dai League Ball Training Cast** (大リーグボール養成ギプス, Dai rīgubōru yōsei gipusu, Major League Ball Training Cast / 悪魔のギブス, Devil's Gibbs) is the iconic baseball training gear worn by Hyūma Hoshi.

Disambiguation page for Dai League Ball Training CastThe following is a list of links to pages that might share the same title.Please follow one of the disambiguation links below or search to find the page you were looking for if it is not listed. If an internal link led you here, you may wish to change the link to point directly to the intended article.
**SPOILERS***WARNING! This article contains spoilers!*(*Yuke! Yuke! Hyūma!*)

## Background

The gear first appears in Volume 1 of the Kyojin no Hoshi manga and was originally created by Ittetsu Hoshi. There are a total of three different versions of the gear throughout the Kyojin no Hoshi series.

## Overview

### Kyojin no Hoshi

#### For left-handed pitchers (左投手用):

A special trainning device created by Ittetsu Hoshi. When worn by the user, it strengthens their upper body due to the various amount of retracting springs (that pulls the user's arms in an opposite direction and allows them to train their muscles to become stronger). The gear also teaches players how to use their whole body to pitch without relying on their own arms. At Ittetsu's orders, Hyūma wears the training cast not only during pitching practice, but also in everyday life, and thanks to that, he acquired a fastball that has become synonymous.

Although in the manga series, Ittetsu Hoshi himself never really explains how the cast works but according to Mitsuru Hanagata,"The cast is very ideal for strengthening the pitching power of Japanese players, who are not as strong as Major Leaguers. And since the retracting springs are always against the throwing direction, the muscle strength necessary for the throwing the ball becomes much more developed."

The gear basically strengthens both the left arm and right arm.

#### Overthrow plaster cast (打倒ギプス):

Once Ittetsu Hoshi becomes a coach for the Chunichi Dragons, he gives Armstrong Ozuma a reinforced version of the **Dai League Ball Training Cast** in order to overthrow Hyūma Hoshi and his first Dai League Ball. The number of springs has increased significantly from the original training cast, and even Ozuma himself, who has a very strong body, had a difficult time swinging the bat at first. After overcoming it, he acquired an "**Invisible Swing / 見えないスイング**" which was so fast that he could not see the trajectory of his practice swing with three bats. In the anime, after Ozuma's death, his mother sent it to Hyūma, asking him to return it to Ittetsu.

### Shin Kyojin no Hoshi

#### Right pitcher (右投手用) :

Once Hyūma makes a comeback on the mound as a right-handed pitcher, he struggles with controlling his pitches and it becomes a major drawback during his matches. Hyūma then tries to overcome his no-control pitches during the off-season. Hyūma's poor control was due to the fact that he had very weak legs. He was initially a left-handed pitcher, so his left and right muscles are built a bit differently and affected his performance once he transitioned to becoming right-handed.

Around the time when he was training his leg muscles and constantly practicing, his father Ittetsu Hoshi appears before him. Ittetsu spent all night crafting a modified and enhanced version of the Dai League Ball Training Cast (one that was now made specifically for right-handed pitchers) and gifts it to him. When Hyūma returns to his own dorimitory alone, he begins to cry as he hugs the gear and later on equips it.

The modified cast was to be worn on the lower body (mainly the legs) and is meant to be worn in everyday life so that both the leg muscles and lower back can be strengthened. Hyūma after wearing the gear, finally overcomes his no-control pitches and racks up wins with his invincible fastball and his newfound ability to throw curveballs.

## Gallery

### Manga:

Young Hyūma Hoshi wearing the training cast. - Kyojin no HoshiArmstrong Ozuma wearing his own newer improved version of the training cast. - Kyojin no HoshiHyūma Hoshi flashback sequence. - Shin Kyojin no HoshiModified version created by Ittetsu Hoshi - Shin Kyojin no HoshiHyūma Hoshi equiping the modified version. - Shin Kyojin no HoshiClose up of the modified equipment. - Shin Kyojin no Hoshi

## Trivia

* The Dai League Ball Training Cast has been referenced in numerous Anime & Manga series and even in real life. In an actual baseball game, "Tohoku Rakuten Golden Eagles vs Saitama Seibu Lions" hosted on July 9th, 2022, during the opening ceremony, a famous Japanese singer & songwriter named Shō Kiryūin, ripped off his Rakuten baseball team jersey and revealed that he was wearing the gear underneath it. He even pitched with it on. (*Yahoo news article*)

## External Links

* wikipedia.org/wiki/大リーグボール
* http://campur.net/kyojinnohoshi-mlbgypsum-kk/