What is the suggested methodological sequence for studying Shafi'i jurisprudence for a beginner, and is the book "Al-Fiqh al-Manhaji" useful in this context? Is there a book that compiles the ethics of the Messenger of Allah, may Allah bless him and grant him peace (such as lowering the gaze, tolerance, and gentleness), and is compatible with the Shafi'i school of thought?

The best book for learning Shafi'i Fiqh is "Al-Fiqh al-Manhaji ala Madhhab (definition) al-Imam al-Shafi'i" due to its ease of understanding, presentation of evidences, and explanation of the wisdom behind the legislation. After completing it, one can move on to more extensive books in the madhhab, such as the commentaries on "Minhaj al-Talibin," like "Tuhfat al-Muhtaj" by Ibn Hajar al-Haytami and its glosses, or the commentaries on Matn Abi Shuja', such as the supercommentary by al-Bujayrimi on al-Khatib's commentary "Al-Iqna." As for books on ethics, they do not require a specific madhhab, and one can benefit from the abridgments of "Ihya' Ulum al-Din" by Al-Ghazali, such as the book "Tahdhib Mawizat al-Mu'minin" by Al-Qasimi.