Wani Books Co., Ltd. (Shibuya-ku, Tokyo; President: Akio Takahashi) released 'Self-Oshi-Katsu BOOK - 36 Ideas to Treat Yourself as Your Favorite -' (Author: Shinobu Wada) on Wednesday, June 3, 2026.

The 'Self-Oshi-Katsu' concept, which quickly became a topic of discussion on X and Instagram, is now a book!

What if you replaced yourself with your 'oshi'?

What if you directed the adoration you feel for your 'oshi' towards yourself?

Might you be able to cherish yourself more?

This is a new, completely original essay by popular illustrator and manga artist Shinobu Wada.

The idea for 'Self-Oshi-Katsu' came to the author when her 'oshi' (favorite) went on hiatus. Thinking that while she might not be good at taking care of herself, she could certainly engage in 'oshi-katsu' (fan activities), she wrote about 36 daily tips and tricks for redirecting the energy she had poured into others back to herself, while exploring her own background and thought patterns.

★Recommended for:

・People who put themselves last, thinking, 'If I just endure a little, things will go smoothly...' ・People who overexert themselves, feeling they 'must meet the expectations of others!' ・People struggling with 'oshi fatigue'

Contents

Chapter 1: Mind | Mental Preparation to Reconsider 'Oshi = Me'

Direct the feelings, love, and expectations you usually have for your idol 'oshi' towards yourself.

'Don't say to myself what I wouldn't say to my oshi.' 'Don't overwrite with others' words.' 'Cheer with all my might for my (my) dreams.' 'Be grateful for my (my) efforts.'

Chapter 2: Lifehack | Daily Choices for Living as 'Oshi (Me)'

Live by taking care of 'Oshi (Me)'.

'Don't choose clothes for my oshi (me) carelessly.' 'Don't sell my oshi's (my) efforts short.' 'Interpersonal relationships are ultimately fan service.'

Chapter 3: Action | Essence of Fan Activities that Color Your Daily Life

Try becoming a fan of 'Oshi (Me)'.

'Accumulate virtue for happiness.' 'Give presents that will please my oshi (me).' 'Hold a fan meeting for my oshi (me).'

…etc.

Book Information

Title: 'Self-Oshi-Katsu BOOK - 36 Ideas to Treat Yourself as Your Favorite -' Author: Shinobu Wada Release Date: June 3, 2026 Price: 1,430 yen (tax included) ISBN: 978-4-8470-7661-9 Publisher: Wani Books

Amazon

https://www.amazon.co.jp/dp/4847076613

Profile

Shinobu Wada Born in Hiroshima Prefecture, illustrator residing in Turin, Italy. Lives with her Italian husband and two children. Works on a wide range of projects including illustrations, manga, and essays. Draws people of all ages, particularly skilled at depicting middle-aged characters. Her manga, capturing mundane daily scenes, quickly goes viral on social media. She is squarely from the 'employment ice age' generation, tending to prioritize harmony with others and having a slightly negative side. Her hobbies include 'oshi-katsu', sketching, and stand-up comedy. Her published works include 'The Laid-Back Italian Life' (Wani Books) and 'Dinner is Gelato' (Yamato Shobo). X @shinoburun Instagram @shino.img

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