徐四Nadutong

Hitori No Shita: The Outcast

Xu Si

Hitori No Shita: The OutcastのXu Siを、人物像、関係、象徴的な法宝、物語、高解像度ビジュアルから紹介します。

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Enter The Outcast

Character visual archive

Identity first. Images second.

No portrait is published for Xu Si until the face, costume and story context can be confirmed. The encyclopedia record remains indexable because the identity and relationships are already useful.

Browse reviewed world visuals

Connected character encyclopedia / 人物实体档案

徐四Nadutong field leader and rough-edged handler of Feng Baobao and Zhang Chulan

Xu Si uses an informal, confrontational style but remains a central protector and operational link between Feng Baobao, Zhang Chulan and Nadutong.

Canonical identity

One person, every verified form.

English name
Xu Si
Chinese name
徐四
Aliases
Fourth Xu
Role
Nadutong field leader and rough-edged handler of Feng Baobao and Zhang Chulan
Affiliation
Nadutong
Power context
Experienced Qi practitioner and field operator
Image editorial standard

No image is published until facial structure, hairstyle, clothing and Nadutong scene context confirm Xu Si rather than another adult male character.

0identity-safe visuals

Relationship network

People connected by the correct kind of bond.

Family, partner, teammate, mentor and rival remain separate relationship types.

01Handler and field partnerFeng Baobao冯宝宝

He understands her direct combat style and long history with the Xu family.

02Brother and operational counterpartXu San徐三

Their opposing temperaments support the same protective mission.

03Field supervisorZhang Chulan张楚岚

He pushes Zhang Chulan to survive the practical politics of the Outcast world.

Connected entities

The systems and institutions around the character.

Each entry returns to the world entity layer until a dedicated canonical page is ready.

Powers and identity systems

1

Places and institutions

1

Story event network

Moments that change identity or relationships.

These event records give future articles and reviewed images a precise story destination.

  1. 01
    Field responsibility

    Managing the central pair

    Xu Si keeps missions moving while shielding deeper identity questions.

  2. 02
    Institutional pressure

    Navigating Outcast politics

    He translates formal company interests into practical survival choices.

Recognition rules

What the archive accepts and rejects.

Rule 01

Do not infer Xu Si from an adult male silhouette.

Rule 02

Use Nadutong team context and facial match.

Rule 03

Keep him distinct from Xu San in group images and captions.

Direct answers

Questions global viewers actually search.

Who is Xu Si?

Xu Si is a Nadutong field leader and one of the principal handlers of Feng Baobao and Zhang Chulan.

Is Xu Si Xu San's brother?

Yes. The brothers work together but use very different management styles.

What is Xu Si's role in the story?

He connects the central characters to Nadutong missions, protection and Outcast politics.

Contextual discussion

Discuss Xu Si

Keep the conversation attached to the image, character, world or article it explains.

1 contributions
X
XianLore EditorJuly 27, 2026

Which visual detail, relationship or signature artifact best identifies Xu Si?