Real Account 20 (Weekly Shonen Magazine KC)

[Machine Translation] The players are falsely executed for failing to uncover the true identity of "Chairman Marble".... Ayame takes surprising action to prove Yuma's innocence! Who really needs you? The stage is set for SNS! The stakes are Tsunagari! A new century type death game has begun! A shocking and exciting "Brain Battle Competition" award-winning work! Who is the "Chairman Marble" hidden inside the player? The identity of the Chairman Marble is still in the dark, despite your best efforts. The number of victims executed by misjudgment is increasing. ...... Ayame takes surprising action to prove the innocence of Yuma, who has begun to suspect her! Unaware that it will stain the classroom with blood--. A deadly atmosphere in a locked room! The sacred classroom becomes a place of absolution!

「会長マーブル」の正体を暴けず、誤処刑されるプレイヤー達…。そんな中、ユウマの潔白を証明すべく、あやめは驚くべき行動に！キミは、誰にホントに必要とされてる？　舞台はSNS！　賭けるはツナガリ！　新世紀型デスゲーム始動！！　衝撃と興奮の「頭脳バトルコンペ」受賞作！！プレイヤーの中に潜む「会長マーブル」は誰だ？ 懸命の推理も空しくその正体は闇の中。誤判断で処刑される犠牲者だけが増えていく……。そんな中、己を疑い始めたユウマの潔白を証明すべく、あやめは驚くべき行動に出る！！　それが教室を血で染めることになるとも知らず──。密室の凶気！ 神聖なる教室が断罪の場に！！