This course consists of basic- to intermediate-level materials science lectures that introduce the concepts that are related to building, classification, and properties of materials. In the beginning, we highlight the uniqueness of our department, which attempts to “engineer” materials by understanding and applying fundamental and background “science”. There are various kinds of materials that are classified by conventional manners, but new concepts emerged to make the borders of the domains more indefinite. However, before one can envisage making a new material or new processing methodology, traditional ways of materials design should be thoroughly reviewed. The course of this semester thus desires to cover at first the fundamental knowledges, e.g., the bonding among atoms, and the crystal structures etc., that extends the knowledges that the students might already have had. Then, the focus will be shifted to metallic materials, where the important concept of dislocations will be introduced. How metallurgists strengthen metallic materials is yet another highly essential topic. Afterwards, both thermodynamic and kinetic methods of designing alloys will be covered, followed by a large number of practical examples. In addition to the scientific and technical teaching materials from textbooks, the course will also briefly cover how to present and write academically, after having taught students how to search proper scientific articles to read and study. Final presentations which are arranged at the last part of the whole semester will be an ideal chance for students to practice. The difficulty of the course is not extremely high, and the aim is to quickly give students an overview of what they will be learning in more detail in the following years. As a plus, the students can also cultivate feelings about what material(s) interest them the most, so that in the future they know better how to choose directions of more advanced studies.